Home / 21,134.42-31,706.90-6,343.62

Finding the Fourth Proportional to 21,134.42, 31,706.90 and 6,343.62

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Solution

The fourth proportional to 21,134.42, 31,706.90 and 6,343.62 is: 9,517.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,134.42 : 31,706.90 = 6,343.62 : x
  2. Step 2: Convert to fraction form
    21,134.42/31,706.90 = 6,343.62/x
  3. Step 3: Cross multiply
    21,134.42x = 31,706.90 × 6,343.62
  4. Step 4: Simplify right side
    21,134.42x = 201,136,524.98
  5. Step 5: Solve for x
    x = 201,136,524.98/21,134.42
  6. Step 6: Final answer
    x = 9,517.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.